12710
Solution : $_{16}S=1s^2,2s^2,2p^63s^2,3p^4$for $1s^2,n+1=1+0=1$for $2p^6,n+1=2+0=2$for $3s^2,n+1=3+0... 0 votes Solution :$R= 45 \Omega$$\therefore G= s$$K_{cell}=\large\frac{1}{n}$$\qquad= \large\frac{22\;cm}{3... 0 votes Solution : \qquad \qquad N_2O_4 \qquad \to \qquad 2 NO_2Begining : a moles \qquad \qquad 0 moles... 0 votes Solution : A lewis base is a species which can donate one or more electron pairs. NH_3 acts as lew... 0 votes Solution : In water Na2O" role="presentation" style="position: relative;">Na2ONa2ONa_2O dissociat... 0 votes Solution : Using the chemical reaction given above, we can rewrite the Equilibrium constant expressi... 0 votes please check the question 0 votes Solution: Equal amounts of reactants are poured into a suitable container. Given sufficient time, th... 0 votes Solution : If we increase pressure, equilibrium. will shift in the direction of less volume, hence ... 0 votes Solution : A solution of a strong acid, such as hydrochloric acid, at concentration 1\; mol\; dm^{− 0 votes Solution :All alkaline metal chlorides (MCl_2) on hydrolysis will produce acidic solutionMCl_2+H_... 0 votes Solution : p^{H}=7+\large\frac{1}{2}$$(4.8-4.8)=7.0$0 votes Solution :$[H^{+}]$ions concentrations are$10^{-11},10^{-12}$and$10^{-13}$on mixing equal volu... 0 votes Solution : 0.1 MHCl means$[H^+]=10^{n} \; \therefore P^n =1$0.1 MKOH means$[OH^+]=10^{+} \; \there...
Solution : $P^{OH} =-\log (1.25 \times 10^{-4})$$\qquad= -0.0969 -4.0=3.9031$$p^{H} =14-3.9031 =10.0... 0 votes Solution :$AglO \equiv Ag^{+}+IO^{-}$$K_{sp}=S^{2}$$\therefore S= (K_{sp})^{1/2}$$\qquad= 1 \times ... 0 votes Solution : HCOONa is a salt of weak acid (HCOOH) and strong base (NaOH) .So it basic C_4H_5 N... 0 votes Solution : All alkaline metal chlorides (MCl_2) on hydrolysis will produce acidic solution MCl_2+... 0 votes Solution : P^H= 3 means [H^+]=10^{-3}M100 ml juice contanis 10^{-3}\;mole \;H^{+} ions\qquad= 1... 0 votes Solution : P^{H} =+\large\frac{1}{2}$$(P^kW+P^{k}a+\log C)$$\qquad= \large\frac{1}{2}$$\times 14 +...
Solution : $K_{b}=\large\frac{K_{w}}{K_{b}}$$\quad= \large\frac{1.0 \times 10^{-34}}{1.7 \times 10^{... 0 votes Solution : Because there already is a concentration of (OH)^{-} ions from the NaOH in solution , t... 0 votes Solution : Only the changing of the temperature of the equilibrium reaction will change the K of the... 0 votes Solution : Bcause the pH is defined as the negative of the log of the H^+ concentration, it is -(... 0 votes Solution : [Ra^{2+}]=x mol/L$$[SO_4^{2-}]=x mol/L$$RaSO_4(s)= Ra^{2+}(aq)+SO_4^{2-}(aq)Let x= [Ra... 0 votes Solution :100g of silicon dioxide contains 46.7 g of silicon, or 100 – 46.7 ( i.e. 53.3 g) of oxygen 0 votes Solution: In the reaction for the formation of ammonia N_2+3H_2 \to 2H_3 0 votes Solution :the concentration of the un-ionized molecules must be relatively large compared with the i... 0 votes Solution : pH+pOH=14 In this problem , the pOH=-\log [OH]= -\log [10^{-4}]=(-4)=4Placing this va... 0 votes Solution: The concentrations in an expression of the equilibrium constant are given in moles/liter (... 0 votes Solution : The correct setup of K_{eq} is the product of the concentration of the products over th... 0 votes Solution : \sqrt{48}=4 \sqrt{3}$$H_2(g)+I_2(g) \to 2HI(g)$ at $720^{\circ} K$[HI] means the concen...
Solution : $\large\frac{P_0 -P_1}{P_0}=\frac{760-736.2}{760}$$\qquad= 0.03132$$\qquad= \large\frac{m... 0 votes Solution : Photosynthesis is an Endothermic Reaction as heat is absorbed. 0 votes Solution : A reaction for which heat must be removed from the system to maintain isothermal conditio... 0 votes Solution : The Conservation of Energy states that the energy of a system plus surrounding can neithe... 0 votes Solution : If we double the kg amount of reactant, we double the moles. The extent becomes double. 0 votes Solution : Extent of the reaction is = (5-1) / (1) = 4. 0 votes Solution : It denotes that how much a reaction occurs. 0 votes Solution : Kelvin is a unit, not dimension. 0 votes Solution : Zero after the point counts. 0 votes Solution : Number of digits that are reasonably sure, called significant figures. 0 votes Solution : Carbon tetrachloride and bromine combine to form dibromodichlormethane and chlorine gas.T... 0 votes Solution : The law of conservation of mass states that mass in an isolated system is neither created... 0 votes Solution : A balanced chemical equation occurs when the number of the different atoms of elements in... 0 votes Solution : magnesium + hydrochloric acid - magnesium chloride + hydrogen Mg + HCl$\to$MgCl2+HHence... 0 votes Solution :$Zn+2HCl \to ZnCl_2+2H$0 votes Solution : According to the Law of Conservation of Mass, mass cannot be created or destroyed.Therefo... 0 votes Solution :$\% \;Al$= (Atomic mass of Al / Formula mass of$Al_2O_3) \times 100\%\; Al = (54\; am...